package com.itheima.mapper;

import com.itheima.pojo.Emp;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;
import org.springframework.stereotype.Service;

import java.time.LocalDate;
import java.util.List;

/*
* 员工管理
* */


@Mapper
public interface EmpMapper {

    //查询总记录数
    //@Select("select count(*) from emp")
    //Long count();
    //分页查询获取列表数据的方法
    //@Select("select * from emp limit #{start},#{pageSize}")
    //List<Emp> page(Integer start,Integer pageSize);

    //员工信息查询
    //@Select("select *from emp")
    List<Emp> list(String name, Short gender, LocalDate begin, LocalDate end);

    //批量删除员工
    void delete(List<Integer> ids);

    //新增员工
    @Insert("insert into emp(username,name, gender, image, job, entrydate, dept_id, create_time, update_time) " +
            "values (#{username},#{name},#{gender},#{image},#{job},#{entryDate},#{deptId},#{createTime},#{updateTime})")
    void insert(Emp emp);

    //根据ID查询员工
    @Select("select * from emp where id=#{id}")
    Emp findById(Integer id);

    //更新员工
    void update(Emp emp);

    //根据用户名和密码查询员工
    @Select("select * from emp where username =#{username} and password=#{password}")
    Emp getByUsernameAndPassword(Emp emp);

    //根据部门ID删除该部门下的员工数据
    @Delete("delete from emp where dept_id =#{deptId}")
    void deleteByDeptId(Integer deptId);

}
